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Electronic document generation system, electronic document generation method, and program

An electronic document and generation system technology, applied in the direction of electrical components, character and pattern recognition, editing/combining graphics or text, etc., to achieve the effect of suppressing the increase of header information, reducing jaggies, and reducing jaggies

Active Publication Date: 2012-07-18
KONICA MINOLTA BUSINESS TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, there is a problem that, in the characters of the character region of such a highly compressed PDF, binarized characters still exist, and in the case of using a slightly lowered resolution, jaggies appear clearly in the outline of the characters ( jagi one)
In addition, the same problem exists when the characters are enlarged and visually confirmed on the monitor.

Method used

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  • Electronic document generation system, electronic document generation method, and program
  • Electronic document generation system, electronic document generation method, and program
  • Electronic document generation system, electronic document generation method, and program

Examples

Experimental program
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Effect test

no. 1 approach

[0067]

[0068] figure 1 It is a schematic diagram showing the electronic document generation system 100 (100A) of the first embodiment. Here, the electronic document generation system 100 includes a multifunction machine (also simply referred to as MFP) 1 (1A).

[0069] The electronic document generation system 100 is a system that electronically digitizes an image (also referred to as a document image or a scanned image) obtained by optically reading a document (paper document, etc.). In detail, by generating a document image by the MFP 1 and performing image processing on the document image, the document is electronically digitized.

[0070] The MFP 1 is a device (also called a multifunction device) having a scanner function, a printer function, a copy function, a fax function, and the like. Specifically, the MFP 1 includes an image reading unit 2, a print output unit 4, a communication unit 5, an input / output unit 6, a storage unit 8, and a controller 9. By mixing these compon...

no. 2 approach

[0129] In the first embodiment described above, the case where the color (layer color) of the anti-aliasing layer LA is set to the same color as the base color is exemplified. In this second embodiment, a case where the same color as the character color is set as the color (layer color) of the anti-aliasing layer LA is exemplified. Hereinafter, the description will focus on the differences from the first embodiment.

[0130] In addition, as shown in the first embodiment, since the layer color of the anti-aliasing layer LA that sets the same color as the substrate color as the layer color depends on the substrate color, it is also called "substrate color-dependent anti-aliasing" Floor". In addition, as shown in the second embodiment, since the layer color of the anti-aliasing layer LA that sets the same color as the character color as the layer color depends on the character color, it is also called "character color-dependent anti-aliasing layer".

[0131] In this second embodimen...

no. 3 approach

[0152] In the above-mentioned third embodiment, two types of "substrate color-dependent anti-aliasing layer" (refer to the first embodiment) and "character color-dependent anti-aliasing layer" (refer to the second embodiment) are selectively used. In the case of anti-aliasing layer LA.

[0153] In this third embodiment, the anti-aliasing layer generating unit 35 selectively generates one of the above-mentioned two kinds of anti-aliasing layers LA for each page of the document FL.

[0154] Specifically, in step S23 ( Figure 5 ) Instead of Image 6 Processing Figure 24 Processing. Figure 24 It is a flowchart showing a part of the operation of the third embodiment.

[0155] First, in step S61, the anti-aliasing layer generating unit 35 determines the base color of the character area (character image area), searches for the base area of ​​a specific color, and determines the largest one or more base areas of the same color Substrate area (maximum substrate area).

[0156] Next, in ste...

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Abstract

A electronic document generation technology is provided which can inhibit the increase of the document size as well as reducing a sawtooth of a character. An electronic document generation system includes a first layer generation unit that generates a character image layer (LC) that represents a character image in the scanned image by a predetermined number of bits (such as, 1 bit), an edge image generation unit that generates an edge image (GA) of the character image, a second layer generation unit that generates an antialiasing layer (LA) that includes a binarized image generated based on the edge image and that is to be superimposed in a semi-transparent state on the character image layer (LC), a file generation unit that generates the electronic document (document FL) that includes the character image layer (LC) and the antialiasing layer (LA).

Description

Technical field [0001] The present invention relates to an electronic document generating system for generating electronic documents and related technologies. Background technique [0002] Among the technologies for generating electronic documents, there are technologies that increase the compression rate while improving the recognition of characters. For example, there is a technology for generating electronic documents in highly compressed PDF (Portable Document Format) based on scanned images (refer to Patent Document 1, etc.). [0003] In a high-compression PDF document, the same compression method is not applied to the entire image data. For example, the scanned image is divided into character regions and non-character regions, and different compression methods are applied to each region. In more detail, the image data of the character area is binarized while maintaining a high resolution, while the image data of the non-character area is lowered in order to ensure the color ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/20G06T5/00
CPCG06K9/20G06T11/60G06T5/00H04N1/40H04N1/4092
Inventor 堤隆弘
Owner KONICA MINOLTA BUSINESS TECH INC
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